AUDIO ELECTRONIC EQUIPMENT, COMPRISING PARAMETRIC EQUALIZERS, TUNEABLE ELECTRONIC CROSSOVERS, FEEDBACK SUPPRESSORS, STEREO MIXER PREAMPLIFIERS, AND MULTIPLE CHANNEL RECORDING CONSOLES; ELECTRONIC AND COMPUTER CIRCUITS, CIRCUIT BOARDS, HARDWARE AND SOFTWARE FOR THE CONTROL, PROCESSING AND DISTRIBUTION OF MULTIPLE DIGITAL AND ANALOG AUDIO AND DATA SIGNALS BOTH LOCALLY AND OVER EXTENDED AREA DIGITAL COMPUTER NETWORKS

AUDIO ELECTRONIC EQUIPMENT, COMPRISING PARAMETRIC EQUALIZERS, TUNEABLE ELECTRONIC CROSSOVERS, FEEDBACK SUPPRESSORS, STEREO MIXER PREAMPLIFIERS, AND MULTIPLE CHANNEL RECORDING CONSOLES